Take a plate add lemon juice, salt,red chilli powder mix well then dip the fish fille both the side.
Take a bowl add All purpose Flour ie maida, salt, baking powder, beer mix this well, keep it in a fridge for 15min. andd yellow food color
In another plate add cornflour and maida dip the marinated fish both the side.
To make a mock sauce add vinegar,onion,cucumber, green chillis chopped microwave for 1min cool it down and add it to mayonees mix well.
dip fish in batter and deep fry